Cremorne bolt.



0. C. RIXSON.

CREMORNE BOLT.

APPLICATION FILED JULY 26 I917- 1,277, 1 26. Patented Aug. 27,1918;

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WITNESS: IN VEN TOR.

- Q ca/fi/ BY ATTORNEY.

osoAn c. aIxsoN, or NEW noonntnnnnw YORK.

CREMORNE BOLT.

To all whom it may concern:

Be it known that I, OSCAR C. R1xso1v,- a citizen of the United States, residing at- New Rochelle, in the county of Westchester and State of New York, have invented cer tain new and useful Improvements in Cremorne Bolts, of which the following is a full, clear, and exact description.

This invention relates to Cremorne bolts adapted for use with swinging closures, such as casements, doors and the like. The object of the invention is to provide a bolt guide constructed so that the parts of the rod which may become scratched or otherwise marred by contact with the guide in its sliding movement, will always be shielded from view by projecting portions of the guide which prevent any such scratched or marred portions from being exposed.

In the drawings:

Figure 1 shows a portionof a door or casement equipped with Gremorne bolts provided with my improved guides;

Fig. 2 is a plan of a blank utilized in forming one of the guides for the bolt rods;

Fig. 3 is a plan of a completed guide; and

Fig. 4 is a longitudinal section through.

Fig. 3, a portion of the bolt rod being shown.

The Cremorne bolt, constituting this invention, is adapted to be utilized with the same types of doors and windows as Cremorne bolts are now used, and in Fig. 1 a section of a casement or window is shownconsisting of two halves 1 and 2, one-half of the window being provided with a stile 3, forming apart of the sash 4. A portion of the window frame is shown at 5. The Cremorne bolt which is mounted upon the stile 3 comprises, as is the usual construction, two bolt rods 7 and 8 which are supported along their lengths by guides 9. The ends of the bolt rods are adapted to fit into strikes 10 car-.

ried by the window frame and'floor when the bolt rods 7 and 8 are pushed outwardly by an actuating mechanism to lock the windows. The bolt rods 7 and 8 are, in the construction shown, of substantially semi-cylindrical shape and are provided with end portions which fit into a casing 13 of sheet metal secured to the stile by means of screws 15, which pass through the casing on substantially its longitudinal axis and also through elongated slots (not shown) which are formed in the ends of the bolt rods, the

Specification of Letters Patent.

Patented Au 27, 1918.

Application filed July 26, 1917. Serial No. 182,812. I

slots being of sufficient length to permit the .boltrodsto travel from their shot to their Withdrawn position.

Referring now to Figs. 2, 3 and 4, one of the guides 9 for the bolt rods is shown, which guide is constructed from the rectangularshaped blank having lugs at the corners thereof disclosed in Fig. 2, by stamping and bending the same in suitable dies until the construction shown in Fig. 3 is produced, the completed guide comprising a semicylindrical tube 40 partially open at the back and having inturned lugs 41, the edges of which meet to form the bottom face of the guide. These lugs extend longitudinally beyond the ends of the guide and are provided on each side of the meeting edges or seam with countersunk holes 42 for the reception of the screws which secure the guides to the stile. These lugs also form a surface upon which the rods rest and maintain'them out of contact with the stile to reduce the friction on the rod. It will also be noted from Fig. 3 that by extending the lugs longitudinally instead of laterally from the guide, a comparatively narrow guide is produced which is adapted to be secured to a narrow stile to thereby overcome a diffs to prevent rattling, while at the same t-ime permitting the rod to slide freely therein,

this portion of the device serving as the guide proper for the rod. The end portions 45 and 45, however, are of greater diameter and the rod slides loosely within the same and without contact therewith, as

is clear from Fig. 4. The end portions 45 and 45 are made of greater length than the travel of the bolt rods, so that the rod may slide within the guide without having the portion of the rod, which is engaged by the intermediate portion 44 of the guide, becoming visible. This particular portion of the rod which comes in contact with the guide, will of necessity be scratched or marred, and the function of the end portions or shields 45 of the guides is to always cover such marred portions of the rod. Ahighly finished rod may therefore be used without "Gopies of this natenvmay be obtainedfor the necessarily marred portions thereof ever becoming visible.

I claim:

1. In a Cremorne vbolt construction, the combination of a bolt rod, a guide comprising a strap having an intermediate part:in sliding contact With said rod and having its end i portions of greater diameterthan the intermediate portion and out of contact With said rod, each of said end-portions being of a greater length than the travel of said rod.

-tensions having perforations each side of the seam therein.

Innutness whereof I subscribe my signature.

OSCAR O. RIXSON.

five cents each; by addressing! the fflo'mmissioner of Patents 

